Chemical shifts and full widths at half maximum intensity (FWHM) of K alpha and K beta(1,3) x-ray emission lines and differences of full widths at half maximum intensity (Delta FHWM) using metallic element as reference for these emission lines were measured for oxygen compounds of elements in the range 22 <= Z <= 29 with a Wavelength-Dispersive X-Ray Fluorescence spectrometry (WDXRF). It was also found larger chemical shifts and FWHM for K beta(1,3) lines than those of K alpha ones. It should be noted that the magnitude of chemical shifts increases with increase in the numbers of ligand atom. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.